DSCR Loan Calculator for Rental Property
With a DSCR loan the property qualifies itself. Find out whether yours does before a single tax return changes hands.
What This Calculator Does
Net operating income divided by annual debt service produces the coverage ratio a lender underwrites, and that is where this calculator begins. It then works back from the rent to show the largest loan the ratio will actually carry.
Who Is This For
Built for investors buying rental property in Miami and South Florida, foreign nationals with no US income to document, self-employed buyers whose returns understate their cash flow, and anyone setting a DSCR program against a conventional loan.
How It Works
Supply the expected monthly rent, the operating expenses you can back with real numbers — taxes, insurance, association dues, management, vacancy — then the rate and term you have been quoted. The calculator returns the DSCR along with the maximum loan amount that ratio permits.
Frequently Asked Questions
What does DSCR measure?
Debt service coverage ratio is net operating income divided by the annual mortgage payment. At 1.0 the property covers its own debt exactly; above 1.0 it generates surplus; below 1.0 the rent falls short and the gap is yours to cover.
What ratio will a lender want?
Program minimums generally sit between 1.0 and 1.25. The lower end usually arrives with a larger down payment or a higher rate, while stronger ratios unlock better pricing. Each lender publishes its own matrix, so treat the range as the shape of the market rather than a guarantee.
Will I have to document my income?
That is the entire point of the product. A DSCR loan underwrites the property instead of the borrower, so tax returns, W-2s, and debt-to-income ratios generally stay out of the file. Lenders still verify credit, reserves, and the rent the property genuinely commands.
Is this route open to foreign nationals?
It is, and it is the most common financing route for international buyers of Miami investment property precisely because it does not rely on US income documentation. Expect a larger down payment and reserves held in a US account.
Which expenses belong in NOI?
Net operating income is rent less operating costs: property taxes, insurance, association dues, management, maintenance, and a vacancy allowance. The mortgage payment is not an operating expense — it is the debt service being measured against.
How does rent translate into loan size?
Once the lender fixes the minimum ratio, the loan becomes whatever payment the net operating income can support at that ratio. Rate weighs as heavily as rent: with benchmark 30-year rates near 6.6-6.7% in mid-2026 and investor programs priced above that benchmark, a small rate difference shifts the maximum noticeably.